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| author | Andres Salomon <dilinger@collabora.co.uk> | 2009-06-30 02:14:00 -0400 |
|---|---|---|
| committer | Anton Vorontsov <cbouatmailru@gmail.com> | 2009-07-01 02:36:38 +0400 |
| commit | 04a820ead0838c76e9c1242feb5e71048bf3e9dc (patch) | |
| tree | cbcc95a15782189403d3e632dcd0b1b13bdb9c82 /drivers/power | |
| parent | 5a4f13fad1ab5bd08dea78fc55321e429d83cddf (diff) | |
| download | lwn-04a820ead0838c76e9c1242feb5e71048bf3e9dc.tar.gz lwn-04a820ead0838c76e9c1242feb5e71048bf3e9dc.zip | |
olpc_battery: Fix up eeprom read function
The eeprom read function was placing values into the wrong place in
'buf'; we were starting from buf[off], rather than buf[0].
Also, the for loop that we were using was much uglier than it needed to
be. This cleans it up a bit.
Signed-off-by: Andres Salomon <dilinger@collabora.co.uk>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/olpc_battery.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/power/olpc_battery.c b/drivers/power/olpc_battery.c index 5fbca2681baa..9c216dd41550 100644 --- a/drivers/power/olpc_battery.c +++ b/drivers/power/olpc_battery.c @@ -8,6 +8,7 @@ * published by the Free Software Foundation. */ +#include <linux/kernel.h> #include <linux/module.h> #include <linux/err.h> #include <linux/platform_device.h> @@ -334,21 +335,21 @@ static ssize_t olpc_bat_eeprom_read(struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { uint8_t ec_byte; - int ret, end; + int ret; + int i; if (off >= EEPROM_SIZE) return 0; if (off + count > EEPROM_SIZE) count = EEPROM_SIZE - off; - end = EEPROM_START + off + count; - for (ec_byte = EEPROM_START + off; ec_byte < end; ec_byte++) { - ret = olpc_ec_cmd(EC_BAT_EEPROM, &ec_byte, 1, - &buf[ec_byte - EEPROM_START], 1); + for (i = 0; i < count; i++) { + ec_byte = EEPROM_START + off + i; + ret = olpc_ec_cmd(EC_BAT_EEPROM, &ec_byte, 1, &buf[i], 1); if (ret) { - printk(KERN_ERR "olpc-battery: EC command " - "EC_BAT_EEPROM @ 0x%x failed -" - " %d!\n", ec_byte, ret); + pr_err("olpc-battery: " + "EC_BAT_EEPROM cmd @ 0x%x failed - %d!\n", + ec_byte, ret); return -EIO; } } |